ctutils
v0.4.2 ExperimentalConstant-time utility library with selection and equality testing support targeting cryptographic applications. Supports `const fn` where appropriate. Built on the `cmov` crate which provides architecture-specific predication intrinsics. Heavily inspired by the `subtle` crate.
Quick Verdict
- ✓Actively maintained (updated 53d ago)
- !Pre-1.0: API may have breaking changes
- ✓Team maintained (2 owners)
- ✓Tiny footprint (33KB, 3 deps)
- ✓Permissive license (Apache-2.0 OR MIT)
Security
Deep Insights
6.3M downloads in the last 30 days (211.2K/day), up 166% from the previous period.
The primary maintainer publishes 216 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.
Only 3 direct dependencies. Lean dependency tree means faster builds and lower supply chain risk.
At 32KB, ctutils is lightweight. Small crate size correlates with focused, well-scoped functionality.
32% of releases have been yanked. Check version history before pinning.
Notable dependents include digest, pkcs8, crypto-bigint, sec1, universal-hash. When high-quality crates choose ctutils, it's a strong quality signal.
Health Breakdown
Recency, release consistency, active ratio
Yanked ratio, deps, size, maturity, features
Reverse deps, ownership, ecosystem
Downloads, momentum, growth trend
Docs, repo, license, metadata
Download Trend
Top Dependents
Most downloaded crates that depend on ctutils
